Mott transition for strongly interacting one-dimensional bosons in a shallow periodic potential
Mott transition for strongly interacting one-dimensional bosons in a shallow periodic potential
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浅周期势中强相互作用一维玻色子的莫特跃迁
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
L. Sanchez
中科院分区：
文献类型：
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作者：
G. Boéris;L. Gori;M. Hoogerland;Avinash Kumar;E. Lucioni;L. Tanzi;M. Inguscio;T. Giamarchi;C. D’Errico;Giuseppe Carleo;G. Modugno;L. Sanchez
研究了深、浅周期势场中一维相互作用玻色子的超流-绝缘体相变。我们比较的理论分析的基础上，量子Monte Carlo模拟在连续空间和Luttinger液体的方法与超冷原子的可调相互作用和光学晶格深度的实验。实验和理论非常吻合。我们的研究提供了一个定量确定的关键参数的莫特过渡，并定义了广泛使用的近似模型，即，玻色-哈伯德和正弦-戈登模型的有效性制度。
We investigate the superfluid-insulator transition of one-dimensional interacting bosons in both deep and shallow periodic potentials. We compare a theoretical analysis based on quantum Monte Carlo simulations in continuum space and Luttinger liquid approach with experiments on ultracold atoms with tunable interactions and optical lattice depth. Experiments and theory are in excellent agreement. Our study provides a quantitative determination of the critical parameters for the Mott transition and defines the regimes of validity of widely used approximate models, namely, the Bose-Hubbard and sine-Gordon models.
影响因子：
8.6
作者：
Gaunt, Alexander L.;Schmidutz, Tobias F.;Hadzibabic, Zoran
通讯作者：
Hadzibabic, Zoran